bbbb bbbq bbci bbeb bbfc bbrc bcbc bccc bcci bcec bcer bcfc bcie bcof bcor bcru bcuc bebb bebe bebi bebo beci becu beeb beef beer befe beff befo beic beir beo- beof beor berc bere beri bero berr beru beur bibb bibe bibi bibo bicc bice bici bico bieb bief bier bieu biff bifi bio- bioc bioi biou biqi birb bire biri biro birr biru bobb bobe bobi bobo bobu boce boco bocq bocu boec boee boef boeo boer bofe boff bofu boi- boie boii boiu boob booc booe boof boor boqe bor- bore borf bori boro borr boru boue bouf bour bque brcb brce breb brec bree bref brei breo brer brfc brfu bric brie brio briq brob broc broe broo bror brou brrr bruc brue bubb bube bubi bubo bubq bubu bucc buce buci buco bucu buer bueu bufc bufe buff bufo bufr buic buie buif buir buiu bur- burb bure buri buro burr buru c-bo cbbc cbcc cbce cbcr cbcu cbec cbee cbef cber cbfb cbfc cbir cboq cbqi cbre ccbc cccb cccc cccf ccci cccu ccee ccfc ccff ccfi ccic ccii ccir ccob ccoc ccrc ccre ccrf ccri ccuc cebu cec- cece ceci ceco ceeb ceec cef- cefc ceor ceou cer- cerc cere cerf ceri cero ceui cfbc cfbr cfcb cfcf cfco cffb cffr cfor cfqc cfrb cfre cibc cibe cibi cibo cicc cici cico cicq cicr cicu ciee cier cife ciff ciii ciob cior cirb circ cire ciri ciro cirr ciuc cobb cobe cobi cobo cobu coce coco cocu cofc cofe coff cofi coif coir coob coof cor- corb corc core corf cori coro corr coub coue cour crbc crbu crcc crce crcr cre- creb crec cree crei creo creu crfc crib cric crie crif criu crob croc croe croo cror crub crue cub- cubb cube cubi cucc cuce cuci cucq cuer cufc cuff cufi cufo cui- cuif cuir curb cure curf curi curo curr ebbc ebbo ebbr ebcc eber ebfc ebic eboe eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecci ecco ecef ecfc ecfr ecib eco- ecou ecrc ecrf ecri ecrr ecru eeee eefe eeoc eerc eero efbr efco efeo effi efic efor ei-q eico eiec eiei eier eiou eire eoir eore eori equ- eque equi equo erbb erbe ercc erce ereb erec erei erer erfc eric erie erio eriq eriu erob eroc eroe eroi eroo erqi errc erre erro erub eruc erur eubc eubi euer eufc eufi euoi eur- eurc eure euro fccf fcic fcii febo fece feeb feer fefc fefe feff fefi fefo feie feio feir feof ferb ferc fere fero ferr feru ffcc ffee ffff ffii ffrr fibe ficc fice fico fiec fief fier fifc fife fiff fifi fifo fiii fioe fior fire foce foci foco foer fofo foie foof for- forb fore fori foro forr four frbc frcc free frei freo freq frfc frib fric frie frio frob froe frou frub frue fubb fubu fuc- fuci fufc fuff fufu fuir fuor fur- fure furi furo furr i-be ibec ibfi ibie ibrc ibri ibro icbc iccb iccc iccf icci icco iccr iccu icec icee icef iceq icer icfb icoc icor icrc icre icrf icrr icru icub icue iecc ieie ieio iere ieri ifbb ifco ifer ific ifor ifrb ifrf ifri iiie iiii iiio iioi iioo iirc iiuc iobi ioci ioee iofc ioii ioio ioof iooi iooo iore iori iqce iqer iqor iqrf ique irbe ircc ircu iree irer irfe irfu iri- iric irie irio irob iroc irrc irre irri iucc iuce iuef iuiu o-eo obbo obec ober obie oboe oboi oboq obor obre obri obro ocbc occc occi oce ocee ocef ocre ocro ocrr ocur oec- oecc oeec oere oeuf ofcr ofeq ofer off- offc offe offo offr offu ofor ofre oici oier oiii oire oobe oobi oocr ooer ooff oooo oore oque oqui orbb orbe orbi orbo orbu orce orci orco ore- oreb orec oreo orer orfe orff orfi orfu ori- oric orie orif orio oro- oroe orof oror orri orro orub oucc ouer oufc oufe ouff ouie ouii ouir our- oure ouro ouu- q-be qbic qcfr qcue qeii qere qeri qero qerq qibo qiru qobu qoob qore qqqq qrio qube qubi qubo qucu quee quer qufu quib quic quie quir quob quoc quoi quor quri quro quu- rbbb rbbr rcbc rcbo rccb rccc rcfc rcic rebb rebe rebo rebu recc rece reci recr recu reeb reef refe reff refi refr refu reif reii reir reiu reof reou rere reri rero reru reue reuf reuu rfef rffc rfic rib- ribe ribo ribu ricc rice rico rief rier rieu rife riff rifu riif riou riqq rire riri riue rob- robb robe robi robo robu rocc roce roco roer rofc rofe roff rofo roif roio roir roiu roob roof rooi roor rorc rore rori roro roru roub roue rouf rrfc rrif rrrr rubb rube rubi rubu ruce ruci ruer rufc rufe ruff rufo ruif rurc rure ruri ruro ruru u-ie ubbe ubbi ubbo uber ubic ubii ubir uboc ucbc ucci ucfb ucio ucrc ueir ufcu ufer uffe uirr uocc uofo uor- uore uqcc urbe urbi urci ure- urfe urff urfi urib uric urie urif uriu uro- uroo urre urri uruq urur uuoc uuri uuuu